Transmission Fluid Temperature Sensor C Circuit Intermittent
The third transmission fluid temperature sensor signal jumps or drops out intermittently. Wiring faults of this kind typically come from chafing, water ingress at connector seals, or pin push-back — a wiggle test on the harness while the code is active often confirms the location.
Affected components
- Trans fluid temp sensor c
- Wiring harness
Common causes
- High likelihood: Sensor connector not fully seated
- Medium likelihood: Harness chafed against transmission housing
- Low likelihood: Connector with intermittent contact under vibration
Possible symptoms
- Check engine or transmission warning light on
- Harsh, delayed, or missing shifts
- Possible limp mode (locked in one gear)
- Slipping or shuddering during gear changes
Diagnostic notes
- The malfunction indicator lamp may illuminate
Related codes
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.